On Fri, 18 Nov 2016, Helmut Kudrnovsky wrote:
Roger Bivand wrote
In a context with Windows 7 without setting the R_LIBS_USER environment
variable, R outside GRASS reports:
Sys.getenv("HOME")
[1] "C:\\Users\\rsb\\Documents"
.libPaths()
[1] "C:/Users/rsb/Documents/R/win-library/3.3"
[2] "C:/Program Files/R/R-3.3.2/library"
but inside GRASS %HOME% is re-defined, so:
Sys.getenv("HOME")
[1] "C:\\Users\\rsb"
.libPaths()
[1] "c:/Program Files/R/R-3.3.2/library"
as R cannot construct: subdirectory ‘R/win-library/x.y’ of the home
directory, for R x.y.z, because "C:\\Users\\rsb/R/win-library/x.y" does
not exist, and that is where R is looking (here in GRASS):
Sys.getenv("R_LIBS_USER")
[1] "C:\\Users\\rsb/R/win-library/3.3"
(the different dirseps do not matter).
Does WinGRASS need to change the HOME environment variable? If it does,
users of R in GRASS need to set R_LIBS or R_LIBS_USER, easiest once via
Control Panel.
I had a look into the sources; I can't find a line of code where winGRASS
changes %HOME% at the moment; but it obvious uses %USERPROFILE% as %HOME%.
and %USERPROFILE% points to in (at least newer) windows versions to
e.g.
echo %USERPROFILE%
C:\Users\hkmyr
C:\Users\\rsb
etc.
in a vanilla windows console, %HOME% isn't defined:
echo %HOME%
%HOME%
within a winGRASS session
echo %HOME%
C:\Users\hkmyr
it points to the folder defined under %USERPROFILE%
add following line
SET HOME=%USERPROFILE%\Documents
below
https://trac.osgeo.org/grass/browser/grass/trunk/mswindows/env.bat#L23
has following effect within a winGRASS session:
Cleaning up temporary files...
Starting GRASS GIS...
WARNING: Concurrent mapset locking is not supported on Windows
__________ ___ __________ _______________
/ ____/ __ \/ | / ___/ ___/ / ____/ _/ ___/
/ / __/ /_/ / /| | \__ \\_ \ / / __ / / \__ \
/ /_/ / _, _/ ___ |___/ /__/ / / /_/ // / ___/ /
\____/_/ |_/_/ |_/____/____/ \____/___//____/
Welcome to GRASS GIS 7.0.5
GRASS GIS homepage: http://grass.osgeo.org
This version running through: Command Shell
(C:\WINDOWS\system32\cmd.exe)
Help is available with the command: g.manual -i
See the licence terms with: g.version -c
See citation options with: g.version -x
If required, restart the GUI with: g.gui wxpython
When ready to quit enter: exit
Launching <wxpython> GUI in the background, please wait...
Microsoft Windows [Version 10.0.14393]
(c) 2016 Microsoft Corporation. Alle Rechte vorbehalten.
C:\Users\hkmyr>
C:\Users\hkmyr>echo %HOME%
C:\Users\hkmyr\Documents
C:\Users\hkmyr>R
R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-w64-mingw32/x64 (64-bit)
R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.
R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.
Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.
.libpaths()
Error: could not find function ".libpaths"
.libPaths()
[1] "C:/Users/hkmyr/Documents/R/win-library/3.3"
[2] "C:/Program Files/R/R-3.3.1/library"
now also the private library is detected within a winGRASS session.
no idea at the moment if this change in env.bat has a side effect to the
winGRASS installation; further tests are needed.
See also
?"environment variables"
which on a Windows installation shows "R_USER" in the Windows specific
section at foot, this also loses /Documents within GRASS.
Roger
-----
best regards
Helmut
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Roger Bivand
Department of Economics, Norwegian School of Economics,
Helleveien 30, N-5045 Bergen, Norway.
voice: +47 55 95 93 55; fax +47 55 95 91 00
e-mail: roger.biv...@nhh.no
http://orcid.org/0000-0003-2392-6140
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